Question

Which set of coordinates satisfies the system of equations y = x − 3 and y = -2x + 1?

A. a
B. b
C. c
D. d

Answer 1

CCCCCCCCCCCCCC

Explanation:

Answer 2

Point c.

You can graph the two points in a calculator to find out the answer OR you can identify the lines using the y-intercept aka b in the y=mx+b format.

Y=x - 3 has a y-intercept of -3, so look for the line where it goes through -3 on the y axis. (do the same for the other except when the y-intercept is 1)

From this, you can identify the lines and just find where they intersect.